baber/WOPTO huggingface dataset:
Patent CA-2158804-A1 (CA)
Title: Method for reducing gaseous emission of halogen compounds in a fluidized bed reactor
Inventor: GARCIA-MALLOL JUAN ANTONIO
IPC: F23J15/00
Filed: 1995-09-21
Abstract: A method for reducing gaseous emission of halogen compounds in a fluidized bed reactor in which the fine particles entrained in flue gases are used to form a temporary layer of particles on the baghouse filter to absorb halogen gases.
Patent CA-2162499-A1 (CA)
Title: Methode d'interconnexion electrique entre les couches adjacentes d'une plaquette de circuit multicouche
Inventor: GERBER JOEL A
IPC: H05K3/46
Filed: 1994-06-07
Abstract: Plaquette de circuits imprimés multicouche comprenant des interconnexions électriques entre des couches adjacentes de la plaquette multicouche. Une interconnexion entre couches est prévue dans une couche de la plaquette de circuits imprimés. Le métal de l'interconnexion est plaqué avec un métal à faible point de fusion. Un film adhésif est déposé sur la couche de la plaquette de circuits imprimés. Des autres adjacentes de la plaquette de circuits imprimés multicouche sont empilées et alignées ensemble. Les couches sont laminées dans des conditions de chaleur et de pression. Le métal à faible point de fusion assure une interconnexion électrique entre les couches adjacentes.
Patent CA-2163642-A1 (CA)
Title: Airport surface vehicle identification
Inventor: OWENS LEE A
IPC: G01S13/76
Filed: 1994-05-26
Abstract: An airport vehicle identification system includes a ground surveillance radar system which radiates both a conventional radar signal and a beacon interrogation signal. The radar receives i) a backscatter signal from the skin returns of a target and ii) an encoded ID signal indicative of the target identity. The encoded ID signal is transmitted by a vehicle (e.g., an aircraft) mounted transponder in response to receiving the beacon interrogation signal. The transponder can be located within an external vehicle light housing such as an aircraft collision avoidance light. This invention fills the critical void in airport traffic control of providing ground controllers with electronic airport surface surveillance data which includes both vehicle position and identity.
Patent CA-2165104-A1 (CA)
Title: Inflatable Portable Refuge Structure
Inventor: BALDWIN GARY L
IPC: E04H9/12
Filed: 1995-12-13
Abstract: An inflatable portable refuge structure includes at least one refuge chamber having a floor, ceiling and a peripheral sidewall and an inner resealable entrance in the peripheral sidewall of the refuge chamber.   An airlock chamber having a floor, ceiling and peripheral sidewall  is  connected  to  the  refuge  chamber  adjacent  the  inner resealable entrance such that exiting from the refuge chamber through the inner resealable opening proceeds into the airlock chamber.   The airlock chamber further includes an outer resealable entrance in the peripheral sidewall thereof.   The refuge chamber and airlock chamber each further include at least one one-way pressure valve, the pressure valves operative to release air from within the chambers in response to increased air pressure within the chambers.  An external pressurized air supply source spaced from the refuge structure and connected thereto by an air supply hose supplies uncontaminated air to the refuge chamber thereby  inflating  the  refuge  structure.    The  air  supply  source continuously supplies pressurized air to the refuge structure such that fresh air enters the refuge chamber and airlock chamber thereby forcing older air out of the chambers through the one-way pressure valves.
Patent CA-2166118-A1 (CA)
Title: Adenovirus vectors for gene therapy
Inventor: GRAHAM FRANK L
IPC: C12N15/09
Filed: 1994-06-24
Abstract: The invention comprises a series of adenovirus-based vectors having deletions in the E1 and/or E3 regions, and optionally insertions of pBR322 sequences, which can be used to deliver nucleic acid inserts into host cells, tissues or organisms that then can express the insert. The invention also comprises the use of these vectors in introducing genes into cells, in making vaccines and in gene therapy.
Patent CA-2169795-A1 (CA)
Title: Data line drivers with column initialization transistor
Inventor: WEISBROD SHERMAN
IPC: G02F1/133
Filed: 1996-02-19
Abstract: A video display driver applies a video signal to column electrodes of a liquid crystal display. The display driver includes a reference ramp generator and column data line drivers. A reference ramp signal is combined with the video signal and applied to an input of a comparator. The comparator controls a first transistor that couples a data ramp signal to a given column of pixels. The first transistor at least partially initializes a voltage developed in the given column of pixels prior to an instant when the data ramp signal begins upramping. A second transistor that is coupled in parallel with the first transistor insures that the column voltage is fully initialized.
Patent CA-2171629-A1 (CA)
Title: Recombinant production of novel polyketides
Inventor: KHOSLA CHAITAN
IPC: C12P7/26
Filed: 1994-09-20
Abstract: Novel polyketides and novel methods of efficiently producing both new and known polyketides, using recombinant technology, are disclosed. In particular, a novel host-vector system is described which is used to produce polyketide synthases which in turn catalyze the production of a variety of polyketides.
Patent CA-2171773-A1 (CA)
Inventor: KOPEC GARY E
IPC: G06K9/66
Filed: 1996-03-14
Abstract: A technique for automatically training a set of character templates using unsegmented training samples uses as input a two-dimensional (2D) image of characters, called glyphs, as the source of training samples, a transcription associated with the 2D image as a source of labels for the glyph samples, and an explicit, formal 2D image source model that models as a grammar the structural and functional features of a set of 2D images that may be used as the source of training data. The input transcription may be a literaltranscription associated with the 2D input image, or it may be nonliteral, for example containing logical structure tags for document formatting, such as found in markup languages. The technique uses spatial positioning information about the 2D image modeled by the 2D image source model and uses labels in the transcription to determine labeled glyph positions in the 2D image that identify locations of glyph samples. The character templates are produced using the input 2D image and the labeled glyph positions without assigning pixels to glyph samples prior to training. In one implementation, the 2D image source model is a regular grammar having the form of a finite state transition network, and the transcription is also represented as a finite state network. The two networks are merged to produce a transcription-image network, which is used to decode the input 2D image to produce labeled glyph positions that identify training data samples in the 2D image. In one implementation of the template construction process, a pixel scoring technique is used to produce character templates contemporaneously from blocks of training data samples aligned at glyph positions.
Patent CA-2173480-A1 (CA)
Title: A method for chemical vapor deposition of titanium nitride films at low temperatures
Inventor: FOSTER ROBERT F
IPC: H01L21/285
Filed: 1994-03-25
Abstract: Titanium nitride film is deposited upon a semiconductor substrate (13) by chemical vapor deposition of titanium tetrachloride, ammonia and a diluent at temperatures less than 550 .degree.C. This is accomplished by minimizing the boundary layer thickness (25) over the substrate (13).
Patent CA-2173578-A1 (CA)
Title: Endodontic instrument of predetermined flexibility
Inventor: HEATH DEREK E
IPC: A61C5/02
Filed: 1994-10-11
Abstract: An endodontic instrument for use in root canal therapy which comprises an inner core of a metal having a specific flexibility, and at least one outer shell of a metal having a different flexibility.  By selecting the ratio of the two metals, the instrument may be designed to have a predetermined desired flexibility which is sufficient to assure proper operation of the instrument, yet not so stiff as to risk damage to the tooth canal.  A kit which is composed of several such instruments of increasing diameter is also disclosed, and with the instruments being designed to be used sequentially in root canal therapy, and wherein all of the instruments possess substantially the same degree of flexibility.  The instruments can thus be used with predictable and consistent results.
Patent CA-2176067-A1 (CA)
Inventor: STEIN MATTHEW I
IPC: G07D9/00
Filed: 1996-05-08
Abstract: An improved bill stacker is described that effectively rolls incoming bills onto the stack. In one aspect of the invention, the bill stacker includes a housing that encloses a stacking plate that is arranged to support a stack of bills. A gripper is typically provided to grab the leading edge of an incoming bill and a stack roller is arranged to travel longitudinally relative the stacking plate to "roll" a newly received bill onto a top end of the bill stack (if present) or the stacking plate when the first bill is being received. A variety of methods of stacking bills in a cash box using the concept of rolling an incoming bill onto the top of a stack are also described.
Patent CA-2184140-A1 (CA)
Title: Pulley, ball bearing and belt transmitting device
Inventor: NIKI MOTOHARU
IPC: F16H55/36
Filed: 1996-08-26
Abstract: Means are provided for effectively restricting or preventing occurrence of abnormal noise under cold ambient. The means are durable, cost effective and also keep the function of a pulley. A ball bearing 2 of a single row type includes an outer ring 2a and balls 2c. The outer ring 2a and each ball 2c are contacted with each other at two points. An oil groove 5 is formed at a position adjacent to the contact positions P and Q on the raceway surface between the raceway surface 3a of the outer ring and the balls 2c. The ball bearing 2 is fitted within or made integral with the inner diameter of a pulley body 1 having a peripheral surface 1e to be contacted with a belt.
Patent CA-2186571-A1 (CA)
Title: Molding arrangement to achieve short mold cycle time
Inventor: MARTIN WALLACE ANTHONY
IPC: B29K25/00
Filed: 1996-09-26
Abstract: An apparatus for molding polystyrene mold halves which are used, with a complementary mold halves, for subsequent molding of a soft contact lens such as a hydrogel soft contact lens.  The apparatus is designed with superior heat conduction capacity so as to minimize the molding cycle time, while simultaneously producing uniformly precise and accurate optical quality surfaces. Molten polystyrene is provided via a hot runner system to a plurality of mold cavities, each of which is defined by first and second structural elements, the first having a convex surface and the other having a concave surface.  In a specific variation, the convex surface provides the optical quality surface to the concave surface of the mold half produced thereby.  The structural element which defines the convex surface includes a hollow cylindrical bushing and a removable power insert mounted therein, which may be changed so that the prescription strength of the contact lens to be formed by the mold may be varied.  In a first embodiment, the power insert includes only a convex surface at its operational end.  In a second embodiment, the power insert includes an annular flat surface surrounding the convex surface, defining at the junction therebetween a discontinuity of curvature, which imparts a sharp edge to the mold half formed thereby.  The power insert may be constructed of pure steel, or alternatively, it may be made of brass, copper chromium, or cobalt-nickel alloyed martensitic steel.  The power insert may be coated with a surface layer of nickel phosphor or silicone oxide, or chrome nitride.  These layers may be turned to their proper thicknesses and dimensions by diamond cutters, and they may be thermally hardened.
Patent CA-2187682-A1 (CA)
Title: Stacked component tapered bearing simulator device
Inventor: SELBY THEODORE W
IPC: G01N11/14
Filed: 1996-10-11
Abstract: Stacked component tapered bearing simulator device, the principles of which can be applied more broadly in such instrumentation as dynamometers and viscometers, can have a stator block with a sample receiving bore; a rotor complementary to the stator block bore extending axially into the bore to define a thin measuring gap, the rotor having a drive shaft extending axially upward from it; a motor, which can rotate in response to torque from a test sample present in the thin gap and which drives the shaft and rotor along a rotation axis; a part for sensing the torque, fixable to the motor, and connectable to a platform that is vertically adjustable by an elevator mechanism, which generally, externally bounds the axis of rotation of the motor, drive shaft, and rotor.  Preferably, the elevator mechanism has a threaded arrangement with an anti-rotation device with a first set of threads residing with the platform, which is restrained from rotating by the anti-rotation device but is allowed to move vertically, and a second set of threads for mating with the first set of threads residing with at least one rotatable member separate from but threadedly engagable with the set of platform threads.
Patent CA-2189049-A1 (CA)
Title: Medicament chamber in an inhalation apparatus
Inventor: LANKINEN TAPIO
IPC: A61J1/05
Filed: 1995-05-26
Abstract: The invention relates to a medicament chamber (6) included in an inhalation apparatus and provided with a container (2) containing a desiccant. The chamber (6) is tightly sealed and has a moisture permeability as poor as possible, and the container (2) is permeable to moisture.
Patent CA-2189581-A1 (CA)
Inventor: TALANIAN ROBERT V
IPC: C12N9/99
Filed: 1995-05-12
Abstract: The present invention is directed to interleukin-1 beta-converting enzyme ICE and ICE-like compositions formed by combining two subunits of ICE and folding such subunits to form an active enzyme.
Patent CA-2190910-A1 (CA)
Inventor: MELO MICHAEL D
IPC: G06F13/10
Filed: 1996-11-21
Abstract: A communication subsystem for a digital computer system, which processes application programs under a base operating system (such as the MS-DOS operating system) in a first processor operational mode (such as the V86 mode), and also under an enhanced operating system (such as Microsoft Windows) during a session under a second processor operational mode (such as a privileged or user mode). During an enhanced operating system session, the enhanced operating system makes use of at least some selected elements of the base operating system, in particular relation to the current invention some of the communications drivers. The communication subsystem enables the digital computer system to transfer messages, each comprising a series of characters, over a communications network. The communication subsystem comprises an upper level communication driver and a base lower level communications driver both forming part of the base operating system and a enhanced lower level communications driver forming part of the enhanced operating system. The upper level communications driver and the base lower level communications driver form part of a protocol stack by which the digital computer system, while under control of the base operating system, transmits and receives messages over the communications network. During a message transmission, the upper level communications driver iteratively provides characters of the message being transmitted to the base lower level communications driver for transmission, and while receiving a message the base lower level communications driver iteratively providing characters of the message being received to the upper level communications driver. During an enhanced operating system session, the upper level communications driver and the enhanced lower level communications driver form at least part of similar protocol stack, but characters are transferred between them using multiple-character buffers.
Patent CA-2192135-A1 (CA)
Title: Diaphragm Seal for a High Voltage Switch Environment
Inventor: LUZZI GLENN J
IPC: H01H33/53
Filed: 1996-12-05
Abstract: A diaphragm for the contact insulating housing of a mechanically operated high voltage switch.  The diaphragm has a central portion through which the shaft from the mechanical operating mechanism to the movable contact passes.  The walls of the diaphragm about the central portion are mechanically joined or chemically bonded to the shaft. The diaphragm is made of such materials, is dimensioned and configured so that the diaphragm moves with the shaft and prevents relative motion therebetween.  The outer rim of the diaphragm is mechanically joined or chemically bonded to the switch housing.  The quality of the diaphragm and the seals permits them to withstand the application of the full operating voltage of the switch.
Patent CA-2192567-A1 (CA)
Inventor: ISLEY FREDERICK P JR
IPC: E04C5/07
Filed: 1995-06-01
Abstract: A method is provided for reinforcing the face or faces of walls (42) so as to prevent or reduce the likelihood of failure when such wails (42) are subjected to atypical loadings such as are encountered doting earthquakes. The method includes the step of applying a resin-impregnated fabric layer (46) over a portion of an exposed face of a wall (42) to be reinforced. The method includes the further step of anchoring the rosin-impregnated fabic layer (46) to a structural member of the wall using fabric fasteners (50), adhesives, or a combination thereof.
Patent CA-2192718-A1 (CA)
Title: Reciprocating machine
Inventor: PICCININI GIUSEPPE RAOUL
IPC: F02B75/32
Filed: 1996-12-12
Abstract: In order to reduce the overall dimensions and the  weight  of  the motion  transmission  system consisting  of  piston,   tie-rod,  crankshaft,   the crankshaft  (11)  and  the  single  tie-rod  (22)  are arranged inside the two mutually opposite pistons (14,  15)  which  constitute  one  single  monolithic element  (14-15)  reciprocating  inside  two mutually opposite cylinders (12,  13).  The machine  (1)  can operate either as an endothermic motor means with atmospheric   feed,   or   as   a   self-supercharged endothermic motor means,  or as  a hydraulic motor means, or  as  a  self-driven  compressor,  or  as  a compressor  which  can be  driven by  an  externally applied motor means.
Patent CA-2199375-A1 (CA)
Title: Process for preparing a synthetic ester from a vegetable oil
Inventor: LAMSA MERJA
IPC: C07C67/03
Filed: 1995-09-07
Abstract: The object of the invention is a process for preparing a synthetic ester from a vegetable oil by a two-stage transesterification process. Further objects of the invention are lubricants containing a synthetic ester prepared by the process according to the invention.
Patent CA-2199963-A1 (CA)
Inventor: LUND DAVID R
IPC: B25B17/00
Filed: 1995-09-11
Abstract: Le dispositif de transmission de couple permet d'appliquer un couple en un point du dispositif et de le transmettre en un autre point du dispositif pour que la puissance ou le couple puisse être utilisé hors du dispositif. Ce dispositif comprend un moyen d'entraînement direct constitué d'une pluralité de chaînons (2, 4) ayant une forme courbe de rayon constant et formant une boucle continue. Chaque second chaînon (2) a un orifice (6). Le moyen d'entraînement direct est en prise avec des roues (23, 24) portant des dents (10) qui font saillie dans lesdits orifices (6).
Patent CA-2200837-A1 (CA)
Title: Calibratable optical distance sensing system and method
Inventor: CAMPBELL JAMES A
IPC: G01C3/06
Filed: 1995-09-05
Abstract: A calibratable optical distance measuring system (100) and method of calibrating the same utilizes a plurality of electronic calibration constants stored in memory (118) to compensate the measurement output of a position sensitive detector element (18) for variations in physical design and circuit performance parameters. The method of calibrating includes generating the plurality of electronic calibration constants by placing the optical distance measuring system (100) into a calibration fixture (200 or 208) where at least one target object is moved into known distances, and the calibration constants are determined based on the system's measurements of the known distances.
Patent CA-2201109-A1 (CA)
Title: Synchroniser and accelerator system for feeding aggregates which coincides with the hammer action to be used with a hammer mill
Inventor: PAOLINI NADIA
IPC: B02C13/286
Filed: 1995-09-13
Abstract: The invention under proposal is a system for feeding aggregate to hammer mills producing sand or other granular material in general, its function being to provide a regulated acceleration of the immission of raw material for processing and the elimination of contact between the hammers and the material to be crushed during those unfavourable moments which give rise to the buildup of unprocessed material in the grinding chamber, thus preventing the optimal use of the hammer surfaces which are then particularly subject to attrition, above all, at the striking edge. This invention, consists in a steel, rectangular box-like structure containing a roller (4) driven by a toothed transmission belt (8) connected to the rotor of a two-hammer mill at a speed such that the said roller (4) executes one revolution for every two revolutions executed by the hammer mill rotor, so that the two peripheral speeds of the roller (4) and the rotor (11) are coordinated according to the ratio determined by the type of mill.
Patent CA-2201509-A1 (CA)
Title: Adjustable seal for propeller drive shaft
Inventor: MACDONALD GEORGE
IPC: F16J15/00
Filed: 1995-09-28
Abstract: A shaft seal device is provided herein for use with a drive shaft extending through an opening in the hull or bulkhead of a vessel to preclude the flow of fluid into the vessel and out of the confines of such device. The shaft is rotatable about a generally-linear axis and has a seal ring mounted on the shaft for rotation with the shaft. The seal ring has a seal ring seal surface. The device has a passageway with a central, longitudinal axis for receiving the shaft for rotation. The device includes adapter means, comprising a part of the passageway, the adapter means having an aft end portion which is fixable to a connector for attaching the shaft seal device to said hull or the bulkhead of the vessel through which the shaft extends. The device further includes slide ring means having part of the passageway and connected to the adapter means, the slide ring means being stationary in the axial direction with respect to the adapter means. The device further includes diaphragm means having a first portion and a second portion, the first portion being disposed between, and forming a watertight seal between, the adapter means and the slide ring means. The device further includes friction ring means having part of the passageway, the friction ring means having one portion operatively connected with the second portion of the diaphragm means in a watertight seal, and having a second portion having a friction ring seal surface around the longitudinal axis of the passageway and positioned and configured to engage the seal ring seal surface to create a generally-watertight seal. The device further includes biasing means cooperating with the slide ring means for aligning the friction ring means with the drive shaft, and for urging the friction ring means and the friction ring seal surface towards the seal ring means and the seal ring seal surface to maintain a generally-watertight seal despite fore and aft movement of the shaft and despite transverse movement of the shaft relative to the longitudinal axis of the passageway.